StoryLegend offers a suite of free online tools for fiction writers and worldbuilders. It includes a timeline creator to arrange events and catch continuity conflicts, a family tree builder to visualize character relationships, and a writing studio for outlining, drafting, and organizing your story. The writing studio features a codex for characters and lore, momentum tracking, and optional AI support for brainstorming and drafting. Plans range from a free tier to premium options with more AI usage and advanced features.